[סגור] How to translate text input in MailPoet WooCommerce Settings page?

Background of the issue:
I am trying to translate a string in the MailPoet Premium plugin's WooCommerce integration section. Specifically, the 'Checkbox opt-in message' field on the WooCommerce checkout page needs translation into the secondary language using WPML.

Symptoms:
I cannot find where in WPML to translate the 'Checkbox opt-in message' string.

Questions:
How can I translate the 'Checkbox opt-in message' in the MailPoet WooCommerce Settings page using WPML?